Initial import

1 files changed, 595 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
new file mode 100644
index 000000000..81de1c68b
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -0,0 +1,595 @@
+/*
+ * linux/arch/arm/mach-omap2/board-omap3beagle.c
+ *
+ * Copyright (C) 2008 Texas Instruments
+ *
+ * Modified from mach-omap2/board-3430sdp.c
+ *
+ * Initial code: Syed Mohammed Khasim
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+#include <linux/pwm.h>
+#include <linux/leds_pwm.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/pm_opp.h>
+#include <linux/cpu.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/mmc/host.h>
+#include <linux/usb/phy.h>
+
+#include <linux/regulator/machine.h>
+#include <linux/i2c/twl.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
+#include <linux/platform_data/mtd-nand-omap2.h>
+
+#include "common.h"
+#include "omap_device.h"
+#include "gpmc.h"
+#include "soc.h"
+#include "mux.h"
+#include "hsmmc.h"
+#include "pm.h"
+#include "board-flash.h"
+#include "common-board-devices.h"
+
+#define	NAND_CS	0
+
+static struct pwm_lookup pwm_lookup[] = {
+	/* LEDB -> PMU_STAT */
+	PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat",
+		   7812500, PWM_POLARITY_NORMAL),
+};
+
+static struct led_pwm pwm_leds[] = {
+	{
+		.name		= "beagleboard::pmu_stat",
+		.max_brightness	= 127,
+		.pwm_period_ns	= 7812500,
+	},
+};
+
+static struct led_pwm_platform_data pwm_data = {
+	.num_leds	= ARRAY_SIZE(pwm_leds),
+	.leds		= pwm_leds,
+};
+
+static struct platform_device leds_pwm = {
+	.name	= "leds_pwm",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &pwm_data,
+	},
+};
+
+/*
+ * OMAP3 Beagle revision
+ * Run time detection of Beagle revision is done by reading GPIO.
+ * GPIO ID -
+ *	AXBX	= GPIO173, GPIO172, GPIO171: 1 1 1
+ *	C1_3	= GPIO173, GPIO172, GPIO171: 1 1 0
+ *	C4	= GPIO173, GPIO172, GPIO171: 1 0 1
+ *	XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
+ *	XMC = GPIO173, GPIO172, GPIO171: 0 1 0
+ */
+enum {
+	OMAP3BEAGLE_BOARD_UNKN = 0,
+	OMAP3BEAGLE_BOARD_AXBX,
+	OMAP3BEAGLE_BOARD_C1_3,
+	OMAP3BEAGLE_BOARD_C4,
+	OMAP3BEAGLE_BOARD_XM,
+	OMAP3BEAGLE_BOARD_XMC,
+};
+
+static u8 omap3_beagle_version;
+
+/*
+ * Board-specific configuration
+ * Defaults to BeagleBoard-xMC
+ */
+static struct {
+	int mmc1_gpio_wp;
+	bool usb_pwr_level;	/* 0 - Active Low, 1 - Active High */
+	int dvi_pd_gpio;
+	int usr_button_gpio;
+	int mmc_caps;
+} beagle_config = {
+	.mmc1_gpio_wp = -EINVAL,
+	.usb_pwr_level = 0,
+	.dvi_pd_gpio = -EINVAL,
+	.usr_button_gpio = 4,
+	.mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+};
+
+static struct gpio omap3_beagle_rev_gpios[] __initdata = {
+	{ 171, GPIOF_IN, "rev_id_0"    },
+	{ 172, GPIOF_IN, "rev_id_1" },
+	{ 173, GPIOF_IN, "rev_id_2"    },
+};
+
+static void __init omap3_beagle_init_rev(void)
+{
+	int ret;
+	u16 beagle_rev = 0;
+
+	omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
+	omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
+
+	ret = gpio_request_array(omap3_beagle_rev_gpios,
+				 ARRAY_SIZE(omap3_beagle_rev_gpios));
+	if (ret < 0) {
+		printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+		return;
+	}
+
+	beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
+			| (gpio_get_value(173) << 2);
+
+	gpio_free_array(omap3_beagle_rev_gpios,
+			ARRAY_SIZE(omap3_beagle_rev_gpios));
+
+	switch (beagle_rev) {
+	case 7:
+		printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
+		beagle_config.mmc1_gpio_wp = 29;
+		beagle_config.dvi_pd_gpio = 170;
+		beagle_config.usr_button_gpio = 7;
+		break;
+	case 6:
+		printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
+		beagle_config.mmc1_gpio_wp = 23;
+		beagle_config.dvi_pd_gpio = 170;
+		beagle_config.usr_button_gpio = 7;
+		break;
+	case 5:
+		printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
+		beagle_config.mmc1_gpio_wp = 23;
+		beagle_config.dvi_pd_gpio = 170;
+		beagle_config.usr_button_gpio = 7;
+		break;
+	case 0:
+		printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
+		beagle_config.usb_pwr_level = 1;
+		beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
+		break;
+	case 2:
+		printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
+		beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
+		break;
+	default:
+		printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
+		omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
+	}
+}
+
+static struct mtd_partition omap3beagle_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+		.name		= "X-Loader",
+		.offset		= 0,
+		.size		= 4 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
+		.size		= 15 * NAND_BLOCK_SIZE,
+		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
+	},
+	{
+		.name		= "U-Boot Env",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x260000 */
+		.size		= 1 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "Kernel",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
+		.size		= 32 * NAND_BLOCK_SIZE,
+	},
+	{
+		.name		= "File System",
+		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x680000 */
+		.size		= MTDPART_SIZ_FULL,
+	},
+};
+
+/* DSS */
+
+static struct connector_dvi_platform_data beagle_dvi_connector_pdata = {
+	.name                   = "dvi",
+	.source                 = "tfp410.0",
+	.i2c_bus_num            = 3,
+};
+
+static struct platform_device beagle_dvi_connector_device = {
+	.name                   = "connector-dvi",
+	.id                     = 0,
+	.dev.platform_data      = &beagle_dvi_connector_pdata,
+};
+
+static struct encoder_tfp410_platform_data beagle_tfp410_pdata = {
+	.name                   = "tfp410.0",
+	.source                 = "dpi.0",
+	.data_lines             = 24,
+	.power_down_gpio        = -1,
+};
+
+static struct platform_device beagle_tfp410_device = {
+	.name                   = "tfp410",
+	.id                     = 0,
+	.dev.platform_data      = &beagle_tfp410_pdata,
+};
+
+static struct connector_atv_platform_data beagle_tv_pdata = {
+	.name = "tv",
+	.source = "venc.0",
+	.connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
+	.invert_polarity = false,
+};
+
+static struct platform_device beagle_tv_connector_device = {
+	.name                   = "connector-analog-tv",
+	.id                     = 0,
+	.dev.platform_data      = &beagle_tv_pdata,
+};
+
+static struct omap_dss_board_info beagle_dss_data = {
+	.default_display_name = "dvi",
+};
+
+#include "sdram-micron-mt46h32m32lf-6.h"
+
+static struct omap2_hsmmc_info mmc[] = {
+	{
+		.mmc		= 1,
+		.caps		= MMC_CAP_4_BIT_DATA,
+		.gpio_wp	= -EINVAL,
+		.deferred	= true,
+	},
+	{}	/* Terminator */
+};
+
+static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
+	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
+};
+
+static struct regulator_consumer_supply beagle_vsim_supply[] = {
+	REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
+};
+
+static struct gpio_led gpio_leds[];
+
+static struct usbhs_phy_data phy_data[] = {
+	{
+		.port = 2,
+		.reset_gpio = 147,
+		.vcc_gpio = -1,		/* updated in beagle_twl_gpio_setup */
+		.vcc_polarity = 1,	/* updated in beagle_twl_gpio_setup */
+	},
+};
+
+static int beagle_twl_gpio_setup(struct device *dev,
+		unsigned gpio, unsigned ngpio)
+{
+	int r;
+
+	mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
+	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
+	mmc[0].gpio_cd = gpio + 0;
+	omap_hsmmc_late_init(mmc);
+
+	/*
+	 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
+	 * high / others active low)
+	 * DVI reset GPIO is different between beagle revisions
+	 */
+	/* Valid for all -xM revisions */
+	if (cpu_is_omap3630()) {
+		/*
+		 * gpio + 1 on Xm controls the TFP410's enable line (active low)
+		 * gpio + 2 control varies depending on the board rev as below:
+		 * P7/P8 revisions(prototype): Camera EN
+		 * A2+ revisions (production): LDO (DVI, serial, led blocks)
+		 */
+		r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
+				     "nDVI_PWR_EN");
+		if (r)
+			pr_err("%s: unable to configure nDVI_PWR_EN\n",
+				__func__);
+
+		beagle_config.dvi_pd_gpio = gpio + 2;
+
+	} else {
+		/*
+		 * REVISIT: need ehci-omap hooks for external VBUS
+		 * power switch and overcurrent detect
+		 */
+		if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
+			pr_err("%s: unable to configure EHCI_nOC\n", __func__);
+	}
+	beagle_tfp410_pdata.power_down_gpio = beagle_config.dvi_pd_gpio;
+
+	platform_device_register(&beagle_tfp410_device);
+	platform_device_register(&beagle_dvi_connector_device);
+	platform_device_register(&beagle_tv_connector_device);
+
+	/* TWL4030_GPIO_MAX i.e. LED_GPO controls HS USB Port 2 power */
+	phy_data[0].vcc_gpio = gpio + TWL4030_GPIO_MAX;
+	phy_data[0].vcc_polarity = beagle_config.usb_pwr_level;
+
+	usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
+	return 0;
+}
+
+static struct twl4030_gpio_platform_data beagle_gpio_data = {
+	.use_leds	= true,
+	.pullups	= BIT(1),
+	.pulldowns	= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
+				| BIT(15) | BIT(16) | BIT(17),
+	.setup		= beagle_twl_gpio_setup,
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
+static struct regulator_init_data beagle_vmmc1 = {
+	.constraints = {
+		.min_uV			= 1850000,
+		.max_uV			= 3150000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(beagle_vmmc1_supply),
+	.consumer_supplies	= beagle_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data beagle_vsim = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 3000000,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
+					| REGULATOR_CHANGE_MODE
+					| REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(beagle_vsim_supply),
+	.consumer_supplies	= beagle_vsim_supply,
+};
+
+static struct twl4030_platform_data beagle_twldata = {
+	/* platform_data for children goes here */
+	.gpio		= &beagle_gpio_data,
+	.vmmc1		= &beagle_vmmc1,
+	.vsim		= &beagle_vsim,
+};
+
+static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
+       {
+               I2C_BOARD_INFO("eeprom", 0x50),
+       },
+};
+
+static int __init omap3_beagle_i2c_init(void)
+{
+	omap3_pmic_get_config(&beagle_twldata,
+			TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
+			TWL_COMMON_PDATA_AUDIO,
+			TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
+
+	beagle_twldata.vpll2->constraints.name = "VDVI";
+
+	omap3_pmic_init("twl4030", &beagle_twldata);
+	/* Bus 3 is attached to the DVI port where devices like the pico DLP
+	 * projector don't work reliably with 400kHz */
+	omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
+	return 0;
+}
+
+static struct gpio_led gpio_leds[] = {
+	{
+		.name			= "beagleboard::usr0",
+		.default_trigger	= "heartbeat",
+		.gpio			= 150,
+	},
+	{
+		.name			= "beagleboard::usr1",
+		.default_trigger	= "mmc0",
+		.gpio			= 149,
+	},
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+	.leds		= gpio_leds,
+	.num_leds	= ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gpio_led_info,
+	},
+};
+
+static struct gpio_keys_button gpio_buttons[] = {
+	{
+		.code			= BTN_EXTRA,
+		/* Dynamically assigned depending on board */
+		.gpio			= -EINVAL,
+		.desc			= "user",
+		.wakeup			= 1,
+	},
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+	.buttons	= gpio_buttons,
+	.nbuttons	= ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device keys_gpio = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data	= &gpio_key_info,
+	},
+};
+
+static struct platform_device madc_hwmon = {
+	.name	= "twl4030_madc_hwmon",
+	.id	= -1,
+};
+
+static struct platform_device *omap3_beagle_devices[] __initdata = {
+	&leds_gpio,
+	&keys_gpio,
+	&madc_hwmon,
+	&leds_pwm,
+};
+
+static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
+	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+	{ .reg_offset = OMAP_MUX_TERMINATOR },
+};
+#endif
+
+static int __init beagle_opp_init(void)
+{
+	int r = 0;
+
+	if (!machine_is_omap3_beagle())
+		return 0;
+
+	/* Initialize the omap3 opp table if not already created. */
+	r = omap3_opp_init();
+	if (r < 0 && (r != -EEXIST)) {
+		pr_err("%s: opp default init failed\n", __func__);
+		return r;
+	}
+
+	/* Custom OPP enabled for all xM versions */
+	if (cpu_is_omap3630()) {
+		struct device *mpu_dev, *iva_dev;
+
+		mpu_dev = get_cpu_device(0);
+		iva_dev = omap_device_get_by_hwmod_name("iva");
+
+		if (!mpu_dev || IS_ERR(iva_dev)) {
+			pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
+				__func__, mpu_dev, iva_dev);
+			return -ENODEV;
+		}
+		/* Enable MPU 1GHz and lower opps */
+		r = dev_pm_opp_enable(mpu_dev, 800000000);
+		/* TODO: MPU 1GHz needs SR and ABB */
+
+		/* Enable IVA 800MHz and lower opps */
+		r |= dev_pm_opp_enable(iva_dev, 660000000);
+		/* TODO: DSP 800MHz needs SR and ABB */
+		if (r) {
+			pr_err("%s: failed to enable higher opp %d\n",
+				__func__, r);
+			/*
+			 * Cleanup - disable the higher freqs - we dont care
+			 * about the results
+			 */
+			dev_pm_opp_disable(mpu_dev, 800000000);
+			dev_pm_opp_disable(iva_dev, 660000000);
+		}
+	}
+	return 0;
+}
+omap_device_initcall(beagle_opp_init);
+
+static void __init omap3_beagle_init(void)
+{
+	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+	omap3_beagle_init_rev();
+
+	if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
+		omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
+	mmc[0].caps = beagle_config.mmc_caps;
+	omap_hsmmc_init(mmc);
+
+	omap3_beagle_i2c_init();
+
+	gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
+
+	platform_add_devices(omap3_beagle_devices,
+			ARRAY_SIZE(omap3_beagle_devices));
+	if (gpio_is_valid(beagle_config.dvi_pd_gpio))
+		omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
+	omap_display_init(&beagle_dss_data);
+
+	omap_serial_init();
+	omap_sdrc_init(mt46h32m32lf6_sdrc_params,
+				  mt46h32m32lf6_sdrc_params);
+
+	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
+	usb_musb_init(NULL);
+
+	usbhs_init(&usbhs_bdata);
+
+	board_nand_init(omap3beagle_nand_partitions,
+			ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
+			NAND_BUSWIDTH_16, NULL);
+	omap_twl4030_audio_init("omap3beagle", NULL);
+
+	/* Ensure msecure is mux'd to be able to set the RTC. */
+	omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
+
+	/* Ensure SDRC pins are mux'd for self-refresh */
+	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
+	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
+
+	pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
+}
+
+MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
+	/* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
+	.atag_offset	= 0x100,
+	.reserve	= omap_reserve,
+	.map_io		= omap3_map_io,
+	.init_early	= omap3_init_early,
+	.init_irq	= omap3_init_irq,
+	.init_machine	= omap3_beagle_init,
+	.init_late	= omap3_init_late,
+	.init_time	= omap3_secure_sync32k_timer_init,
+	.restart	= omap3xxx_restart,
+MACHINE_END